Steam Engine Build/Cylinder Case

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Steam Engine Build Instructions

Description

The cylinder cover services to hold the cylinder liner in place and has two flanges that allow the valve assembly and mounting brackets to be attached.

There is some discussion at this time as to the shape of the cylinder flanges. Originally a circular shape was specified, but this complicates the fabrication process, especially in the valve cover since it calls for a cylindrical shape to be created and welded in place.

Positive Points for a Square Flange:

  • Greatly simplifies construction
  • Allows a cosmetic cover to be included later

Negative Aspects:

  • Uses more metal
  • Adds additional weight
  • May require more bolts to fasten

CAD

FreeCAD: File:Cad-cylinder-case.zip

  • cad-cylinder-case.FCStd
  • cad-cylinder-flange.FCStd
  • cad-cylinder-case-asmbly.FCStd

Cad-cylinder-case-asmbly.png

Drawing

Spec-Cylinder-Cover.png

Instructions

Cylinder Case

Use a cast iron pipe with an I.D of 4.5" and an O.D. of 5.5".

  1. Drill four exhaust vent holes 3.725" from the top dead center end of the cylinder case at top, bottom, and both sides.

Cylinder Flange

Use half inch steel plate.

  1. Cut a square 7.5" on a side.
  2. Cut a circle of 5.5" diameter center in the square.
  3. Make two.

Cylinder Case Assembly

  1. Weld the flanges one to each end of the cylinder case.
  2. Grind welds flat on both ends.
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